void generate_random_page(char *page)
{
unsigned int i;
switch (rand() % 6) {
/* return a page of complete trash */
case 0: /* bytes */
for (i = 0; i < page_size; )
page[i++] = (unsigned char)rand();
return;
case 1: /* words */
for (i = 0; i < (page_size / 2); ) {
page[i++] = 0;
page[i++] = (unsigned char)rand();
}
return;
case 2: /* ints */
for (i = 0; i < (page_size / 4); ) {
page[i++] = 0;
page[i++] = 0;
page[i++] = 0;
page[i++] = (unsigned char)rand();
}
return;
/* return a page that looks kinda like a struct */
case 3: fabricate_onepage_struct(page);
return;
/* return a page of unicode nonsense. */
case 4: gen_unicode_page(page);
return;
/* page of 0's and 1's. */
case 5:
for (i = 0; i < page_size; )
page[i++] = (unsigned char)rand() % 2;
return;
default:
BUG("unreachable!\n");
return;
}
}
void main(int argc, char* argv[])
{
unsigned char *page;
unsigned int x = 0, y, n = 0;
struct timeval t;
gettimeofday(&t, 0);
srand((t.tv_sec * getpid()) ^ t.tv_usec);
page = malloc(4096);
memset(page, 0, 4096);
gen_unicode_page(page);
for (y = 0; y < 4096; y+=32) {
for (x = 0; x < 32; x++) {
printf("%c", page[n++]);
}
}
}
